I cannot copy multiline text into slack in the browser. All newlines disappear<p>copy paste of<p><pre><code> id
io
cy
</code></pre>
becomes <i>idiocy</i> in slack.<p>These apps try to be too smart sometimes.<p>I wish for a plain textbox, and add smarts to the browser.
I saw there's a firefox plugin that lets you edit all your textboxes in actual emacs.
This has nothing to do with the fact that signal is based on electron. Whatsapp has a very similar client and it works perfectly with the mentioned snippets. Both copy and paste work flawlessly.
Element (Riot) supports markdown, including markdown code blocks which are really handy for situations like this. You can even have syntax highlighting.